Keystone Solutions
.Net Developer
Keystone SolutionsBelgium3 hours ago
Full-timeRemote FriendlyEngineering, Information Technology
Mission Overview:

Join Keystone Solutions as a consultant for a full-stack .NET assignment with our client. As a .NET Developer, you will translate the needs and requirements of the client into technical, user-friendly applications. You will be responsible for the (functional)/technical analysis and software development. You will contribute to the ongoing development of the clients e-portal where citizens and care facilities can interact with the clients department. The e-portal is a fully in-house developed platform. All responsibilities are performed as a Keystone Solutions consultant, working closely with the clients teams.

Key Responsibilities:

  • Translate client needs and requirements into technical, user-friendly applications.
  • Take ownership of (functional)/technical analysis and software development.
  • Contribute to the further expansion of the clients e-portal used by citizens and care facilities for interactions with the clients department (a fully in-house developed platform).
  • Perform these responsibilities under Keystone Solutions? consultancy model in close collaboration with client stakeholders.


Required Skills and Experience:

  • Expert Full-Stack Developer ? Most recent experience
  • CQRS (via MediatR in .NET) ? Level: Junior
  • DDD (Domain Driven Design) ? Level: Junior
  • Knowledge of .NET 6+ ? Level: Confirmed
  • Knowledge of ASP.NET MVC 5 ? Level: Confirmed
  • Knowledge of React (or similar front-end framework ? e.g., Vue, Angular) ? Level: Confirmed
  • Senior Full-stack .NET developer with minimum 6 years of experience
  • YARP ? Level: Junior
  • At least 5 years of experience as a .NET developer in a Microsoft .NET environment and a bachelor?s or master?s degree in computer science
  • At least 2 years of experience developing a SPA front-end and API back-end in .NET Core
  • Preferably knowledge of modern databases and relational data management techniques (SQL, ERD)
  • Familiar with application security
  • Team player who enjoys collaborating with colleagues to successfully complete projects
  • Creative with a strong sense of responsibility; you take initiative to deliver high-quality solutions
  • In addition to Dutch, you have passive knowledge of English
  • Role: Expert Application Developer ? Most recent experience: Any time
  • .NET development in Microsoft .NET environment ? Level: Confirmed ? Most recent experience: Any time
  • .NET 6 and higher ? Level: Expert ? Most recent experience: Any time
  • ASP .NET MVC 5 ? Level: Confirmed ? Most recent experience: Any time
  • CQRS (via MediatR in .NET) ? Level: Junior ? Most recent experience: Any time
  • DDD (Domain Driven Design) ? Level: Junior ? Most recent experience: Any time
  • React ? Level: Confirmed ? Most recent experience: Any time
  • Senior Full-stack .NET developer ? Level: Confirmed ? Most recent experience: Any time
  • SPA front-end and API back-end in .NET Core ? Level: Junior ? Most recent experience: Any time
  • SQL, ERD ? Level: Junior ? Most recent experience: Any time
  • YARP ? Level: Junior ? Most recent experience: Any time
  • Languages ? Dutch: Active knowledge
  • Languages ? English: Passive knowledge
  • Languages ? French: Active knowledge


Consultancy Advantages:

  • Consultancy Nature of Work: Operate as a Keystone Solutions consultant embedded with the client, collaborating on-site or in a hybrid setup with their teams while benefiting from Keystone?s community and support.
  • Dynamic Projects: Tackle diverse challenges across different client initiatives, broadening your exposure to architectures, frameworks, and domains.
  • Turbo-Charged Learning and Development: Access continuous learning, knowledge-sharing, and mentorship through Keystone Solutions to accelerate your growth in full-stack .NET, SPA frameworks, and modern cloud-aligned practices.
  • Ambition Skyrocketing within a Consultancy Framework: Build a high-impact career through varied client engagements, progressively taking on more responsibility, ownership, and technical leadership.


Keystone Solutions? Values in Action:

  • Excellence and craftsmanship: Deliver robust, secure, and maintainable solutions that stand the test of time.
  • Collaboration and empathy: Partner closely with client stakeholders and teammates to achieve successful outcomes.
  • Integrity and accountability: Take ownership from analysis to delivery, honoring commitments and quality standards.
  • Curiosity and growth mindset: Embrace continuous improvement, knowledge-sharing, and modern best practices.


Role-Specific Impact as a Consultant:

  • Apply full-stack .NET expertise (.NET 6+, ASP.NET MVC 5, React or similar) to deliver impactful features across SPA front-ends and API back-ends.
  • Leverage CQRS (via MediatR) and DDD fundamentals to structure scalable, maintainable solutions tailored to client needs.
  • Contribute to secure, data-driven applications using relational techniques (SQL, ERD) and modern platform capabilities, including YARP where applicable.
  • Shape the client?s e-portal capabilities through end-to-end responsibility, from functional/technical analysis to high-quality delivery.


How to Apply:

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal.

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